Weather in Antofagasta in August 2025
Average weather
Average temperature in Antofagasta in August
The temperature in August is +22°C on average, with a range between a maximum of +24°C during the day and a minimum of +15°C at night.
The average maximum temperature goes down 33% by the end of the month, compared with the beginning of the month, from +22°C to +19°C.
Is Antofagasta warm or cold in August?
Antofagasta is typically mild in August.
Maximum temperatures go up compared to the previous month from +20°C to +20°C. The minimum temperature also goes up from +13°C to +13°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
August is one of the coolest months in Antofagasta, here is the comparison with other months:
Water temperature in Antofagasta in August
Water in Antofagasta in August is Cold. It varies from +14°C to +16°C, with an average of +15°C. This is almost similar to the air temperature, which averages +20°C.
The water temperature in August is one of the coldest of the entire year:
Can you swim in Antofagasta in August?
Climate in Antofagasta in August
| July | August | September | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +20°C | +20°C | +20°C | ||||
| Min. temperature | ||||||
| +7°C | +8°C | +9°C | ||||
| Max. temperature | ||||||
| +27°C | +27°C | +26°C | ||||
| Rainfall | ||||||
| 10 mm | 7 mm | 5 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Avg. water temperature | ||||||
| +16°C | +15°C | +15°C | ||||
| Humidity | ||||||
| 90% | 91% | 91% | ||||
| Air pressure | ||||||
| 1015 HPa | 1015 HPa | 1015 HPa | ||||
| Sunny days | ||||||
| 12 | 12 | 12 | ||||
| Cloudy days | ||||||
| 10 | 10 | 10 | ||||
| Rainy days | ||||||
| 9 | 8 | 8 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
August weather is still as good as in July. The temperature levels stay the same in the area of +20°C for average maximum temperature during the day. As August arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 10 mm to 7 mm. Humidity rises from 90% to 91%. The average wind speed doesn’t change much during August, staying around 2 m/s. The amount of sunny days stay about the same, averaging 12 sunny days during the month.
September brings much the same weather, it remains good.
Wind
The average wind speed is 2 m/s getting up to 3 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Antofagasta is gradually increasing during August, going from 2 m/s to 2 m/s over the course of the month.
How was the weather last August in Antofagasta?
Climate Change over Years
The climate in Antofagasta in August has not changed much over the last 43 years.
The average temperature was the lowest in 2022 (+21°C) and the highest in 1997 (+23°C). The driest year was 1980 with only 25 mm of rainfall, and the wettest year was 1991 with 128 mm.
FAQ
Is August a good time to visit Antofagasta?
Can you sunbathe in Antofagasta in August?
Can you swim in Antofagasta in August?
Is Antofagasta rainy in August?
Is it sunny in Antofagasta in August?
Other cities in Chile
Monthly weather in Antofagasta
Source of the data
For this page, we’ve looked at the typical weather in Antofagasta, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.